Make it so that the actor can reject embedded items using the Item pre-create hook

module/documents/Actor/Handler.mjs

@@ -39,4 +39,16 @@ export class ActorHandler extends Actor {
 		if (!this.fn?.[`createCustom${data.embeddedCreate}`]) return;
 		this.fn?.[`createCustom${data.embeddedCreate}`].bind(this)($event);
 	};
+
+	/**
+	 * @param {ItemHandler} item
+	 * @returns {boolean} true to allow the document to be embedded
+	 */
+	async preItemEmbed(item) {
+		let type = item.type[0].toUpperCase() + item.type.slice(1);
+		if (this.fn?.[`pre${type}Embed`]) {
+			return await this.fn?.[`pre${type}Embed`].bind(this)(item);
+		};
+		return true;
+	};
 };

module/documents/Actor/Player.mjs

@@ -1,3 +1,5 @@
+import { ItemHandler } from "../Item/Handler.mjs";
+
 /** @this {Actor} */
 async function genericEmbeddedUpdate($event) {
 	let data = $event.delegateTarget.dataset;
@@ -68,10 +70,29 @@ async function createCustomSpell() {
 	}]);
 };
 
+/**
+ * @param {ItemHandler} item
+ * @this {Actor}
+ */
+async function preAspectEmbed(item) {
+	let limit = 1
+	if (this.itemTypes.aspect.length >= limit) {
+		ui.notifications.error(
+			game.i18n.format(
+				`dotdungeon.notification.error.aspect-limit-reached`,
+				{ limit }
+			),
+			{ console: false }
+		);
+		return false;
+	};
+};
+
 export default {
 	genericEmbeddedDelete,
 	genericEmbeddedUpdate,
 	createCustomItem,
 	createCustomAspect,
-	createCustomSpell
+	createCustomSpell,
+	preAspectEmbed,
 };

module/documents/Item/Aspect.mjs

@@ -1,14 +1,7 @@
-/** @this {Item} */
-async function _preCreate(data, options, user) {
-	if (this.parent.itemTypes.aspect.length > 0) {
-		ui.notifications.error(
-			game.i18n.format(
-				`dotdungeon.notification.error.aspect-limit-reached`,
-				{ limit: 1 }
-			),
-			{ console: false }
-		);
-		return false;
+/** @this {ItemHandler} */
+async function _preCreate(_data, _options, _user) {
+	if (this.isEmbedded) {
+		return await this.actor?.preItemEmbed(this);
 	};
 };
 

module/documents/Item/Handler.mjs

@@ -1,6 +1,11 @@
 import AspectItem from "./Aspect.mjs";
 
+/**
+ * @extends {Item}
+ */
 export class ItemHandler extends Item {
+	/** @override */
+
 	itemTypes = {
 		aspect: AspectItem,
 	};